EP 4142167 A1 20230301 - RADIO FREQUENCY LOOPBACK FOR TRANSCEIVERS
Title (en)
RADIO FREQUENCY LOOPBACK FOR TRANSCEIVERS
Title (de)
FUNKFREQUENZ-LOOPBACK FÜR SENDEEMPFÄNGER
Title (fr)
BOUCLAGE DE RADIOFRÉQUENCE POUR ÉMETTEURS-RÉCEPTEURS
Publication
Application
Priority
- US 201862625443 P 20180202
- EP 19705683 A 20190201
- US 2019016273 W 20190201
Abstract (en)
Methods and devices for radio frequency (RF) loopback for transceivers are described. A transceiver for communicating RF signals with a target device may transmit signals at a transmit frequency and receive signals at a (different) receive frequency. The transceiver may include a waveguide diplexer for separating and combining signals based on frequency. The transceiver may be configured to couple a loopback signal from a common port of the waveguide diplexer; the loopback signal may be based on a transmit signal. The transceiver may include a loopback translator to translate the loopback signal from the transmit frequency to the receive frequency and provide the translated loopback signal to a receiver used for receiving signals from the target device. The receiver may compare the translated loopback signal with a representation of the transmit signal to generate a compensation signal. A transmitter may use the compensation signal to adjust subsequent transmit signals.
IPC 8 full level
H04B 1/52 (2006.01)
CPC (source: CN EP KR US)
H04B 1/0475 (2013.01 - US); H04B 1/12 (2013.01 - KR US); H04B 1/401 (2013.01 - KR); H04B 1/44 (2013.01 - US); H04B 1/52 (2013.01 - CN EP); H04B 1/525 (2013.01 - KR); H04B 17/11 (2015.01 - US); H04B 17/14 (2015.01 - KR); H04B 17/15 (2015.01 - KR US); H04B 17/21 (2013.01 - KR US); H04B 17/29 (2015.01 - KR US)
Citation (search report)
- [A] US 2016105299 A1 20160414 - CHEE YUENHUI [US], et al
- [A] EP 2752997 A1 20140709 - ERICSSON TELEFON AB L M [SE]
- [A] US 2007082617 A1 20070412 - MCCALLISTER RONALD D [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019152793 A1 20190808; AU 2019215122 A1 20200730; AU 2019215122 B2 20220804; AU 2022263565 A1 20221208; AU 2022263565 B2 20240530; BR 112020015392 A2 20210217; CA 3089340 A1 20190808; CN 111684730 A 20200918; CN 111684730 B 20220628; CN 114900204 A 20220812; EP 3725001 A1 20201021; EP 3725001 B1 20220914; EP 4142167 A1 20230301; ES 2928772 T3 20221122; KR 102577743 B1 20230912; KR 20200116470 A 20201012; KR 20230135154 A 20230922; SG 11202007059U A 20200828; US 11258472 B2 20220222; US 11855667 B2 20231226; US 2020358467 A1 20201112; US 2022131562 A1 20220428
DOCDB simple family (application)
US 2019016273 W 20190201; AU 2019215122 A 20190201; AU 2022263565 A 20221104; BR 112020015392 A 20190201; CA 3089340 A 20190201; CN 201980010438 A 20190201; CN 202210569939 A 20190201; EP 19705683 A 20190201; EP 22190442 A 20190201; ES 19705683 T 20190201; KR 20207023234 A 20190201; KR 20237030619 A 20190201; SG 11202007059U A 20190201; US 201916960823 A 20190201; US 202217569354 A 20220105